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<article id="content">
<header>
<h1 class="title">Module <code>graia.application.utilles</code></h1>
</header>
<section id="section-intro">
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">import functools
from typing import Any, Callable, ContextManager, Iterable, List, Union, TypeVar
from graia.broadcast.entities.dispatcher import BaseDispatcher
from graia.broadcast.interfaces.dispatcher import DispatcherInterface

from .exceptions import (
    AccountMuted,
    AccountNotFound,
    InvaildArgument,
    InvaildAuthkey,
    InvaildSession,
    NotSupportedVersion,
    TooLongMessage,
    UnauthorizedSession,
    UnknownTarget,
)
from .context import enter_context
import inspect

_T = TypeVar(&#34;_T&#34;)


def applicationContextManager(func: Callable):
    @functools.wraps(func)
    async def wrapper(self, *args, **kwargs):
        with enter_context(app=self):
            return await func(self, *args, **kwargs)

    return wrapper


def requireAuthenticated(func: Callable):
    @functools.wraps(func)
    def wrapper(self, *args, **kwargs):
        if not self.connect_info.sessionKey:
            raise InvaildSession(&#34;you must authenticate before this.&#34;)
        return func(self, *args, **kwargs)

    wrapper.__annotations__ = func.__annotations__
    return wrapper


def SinceVersion(*version: int):
    def wrapper(func):
        @functools.wraps(func)
        def inside_wrapper(self, *args, **kwargs):
            if (
                self.connect_info.current_version
                and self.connect_info.current_version &lt; version
            ):
                raise NotSupportedVersion(
                    &#34;the current version does not support this feature: {0}&#34;.format(
                        self.connect_info.current_version
                    )
                )
            return func(self, *args, **kwargs)

        return inside_wrapper

    return wrapper


def DeprecatedSince(*version: int, action: str = &#34;warn&#34;):
    if action not in [&#34;warn&#34;, &#34;error&#34;, &#34;ignore&#34;]:
        raise TypeError(&#34;action must be in&#34; + str([&#34;warn&#34;, &#34;error&#34;, &#34;ignore&#34;]))

    def wrapper(func):
        @functools.wraps(func)
        def inside_wrapper(self, *args, **kwargs):
            if (
                self.connect_info.current_version
                and self.connect_info.current_version &gt; version
            ):
                if action == &#34;error&#34;:
                    raise NotSupportedVersion(
                        &#34;the current version deprecated this feature: {0}&#34;.format(
                            self.connect_info.current_version
                        )
                    )
                elif action == &#34;warn&#34;:
                    import warnings

                    warnings.warn(
                        &#34;&#39;{0}&#39; has been deprecated since {1}, use other methods to realize your business as soon as possible!&#34;.format(
                            func.__qualname__, version
                        )
                    )
            return func(*args, **kwargs)

        return inside_wrapper

    return wrapper


code_exceptions_mapping = {
    1: InvaildAuthkey,
    2: AccountNotFound,
    3: InvaildSession,
    4: UnauthorizedSession,
    5: UnknownTarget,
    6: FileNotFoundError,
    10: PermissionError,
    20: AccountMuted,
    30: TooLongMessage,
    400: InvaildArgument,
}


def raise_for_return_code(code: Union[dict, int]):
    if isinstance(code, dict):
        code = code.get(&#34;code&#34;)
        exception_code = code_exceptions_mapping.get(code)
        if exception_code:
            raise exception_code
    elif isinstance(code, int):
        exception_code = code_exceptions_mapping.get(code)
        if exception_code:
            raise exception_code


def print_traceback_javay():
    stacks = inspect.stack()[1:]
    for i in stacks:
        print(f&#34;    at [{i.filename}:{i.lineno}]&#34;)
    print(&#34;\n&#34;)


class AppMiddlewareAsDispatcher(BaseDispatcher):
    always = True
    context: ContextManager

    def __init__(self, app) -&gt; None:
        self.app = app

    def beforeExecution(self, interface: &#34;DispatcherInterface&#34;):
        self.context = enter_context(self.app, interface.event)
        self.context.__enter__()

    def afterExecution(self, interface: &#34;DispatcherInterface&#34;, exception, tb):
        self.context.__exit__(exception.__class__ if exception else None, exception, tb)

    async def catch(self, interface: &#34;DispatcherInterface&#34;):
        from graia.application import GraiaMiraiApplication

        if interface.annotation is GraiaMiraiApplication:
            return self.app


def context_enter_auto(context):
    def wrapper1(func):
        @functools.wraps(func)
        def wrapper2(*args, **kwargs):
            with context:
                return func(*args, **kwargs)

        return wrapper2

    return wrapper1


def call_atonce(*args, **kwargs):
    def wrapper(callable_target):
        return callable_target(*args, **kwargs)

    return wrapper


class InsertGenerator:
    base: Iterable[Any]
    insert_items: List[Any]

    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        self.base = base_iterable
        self.insert_items = pre_items or []

    def __iter__(self):
        for i in self.base:
            if self.insert_items:
                yield self.insert_items.pop()
            yield i
        else:
            if self.insert_items:
                yield from self.insert_items[::-1]


class MultiUsageGenerator(InsertGenerator):
    continue_count: int

    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        super().__init__(base_iterable, pre_items=pre_items)
        self.continue_count = 0

    def __iter__(self):
        for i in super().__iter__():
            if self.continue_count &gt; 0:
                self.continue_count -= 1
                continue
            yield i


class AutoUnpackTuple:
    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        self.base = base_iterable

    def __iter__(self):
        for i in self.base:
            if isinstance(i, tuple):
                yield from i
                continue
            yield i


def yes_or_no(value: bool) -&gt; str:
    return &#34;yes&#34; if value else &#34;no&#34;</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-functions">Functions</h2>
<dl>
<dt id="graia.application.utilles.DeprecatedSince"><code class="name flex">
<span>def <span class="ident">DeprecatedSince</span></span>(<span>*version: int, action: str = 'warn')</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def DeprecatedSince(*version: int, action: str = &#34;warn&#34;):
    if action not in [&#34;warn&#34;, &#34;error&#34;, &#34;ignore&#34;]:
        raise TypeError(&#34;action must be in&#34; + str([&#34;warn&#34;, &#34;error&#34;, &#34;ignore&#34;]))

    def wrapper(func):
        @functools.wraps(func)
        def inside_wrapper(self, *args, **kwargs):
            if (
                self.connect_info.current_version
                and self.connect_info.current_version &gt; version
            ):
                if action == &#34;error&#34;:
                    raise NotSupportedVersion(
                        &#34;the current version deprecated this feature: {0}&#34;.format(
                            self.connect_info.current_version
                        )
                    )
                elif action == &#34;warn&#34;:
                    import warnings

                    warnings.warn(
                        &#34;&#39;{0}&#39; has been deprecated since {1}, use other methods to realize your business as soon as possible!&#34;.format(
                            func.__qualname__, version
                        )
                    )
            return func(*args, **kwargs)

        return inside_wrapper

    return wrapper</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.SinceVersion"><code class="name flex">
<span>def <span class="ident">SinceVersion</span></span>(<span>*version: int)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def SinceVersion(*version: int):
    def wrapper(func):
        @functools.wraps(func)
        def inside_wrapper(self, *args, **kwargs):
            if (
                self.connect_info.current_version
                and self.connect_info.current_version &lt; version
            ):
                raise NotSupportedVersion(
                    &#34;the current version does not support this feature: {0}&#34;.format(
                        self.connect_info.current_version
                    )
                )
            return func(self, *args, **kwargs)

        return inside_wrapper

    return wrapper</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.applicationContextManager"><code class="name flex">
<span>def <span class="ident">applicationContextManager</span></span>(<span>func: Callable)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def applicationContextManager(func: Callable):
    @functools.wraps(func)
    async def wrapper(self, *args, **kwargs):
        with enter_context(app=self):
            return await func(self, *args, **kwargs)

    return wrapper</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.call_atonce"><code class="name flex">
<span>def <span class="ident">call_atonce</span></span>(<span>*args, **kwargs)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def call_atonce(*args, **kwargs):
    def wrapper(callable_target):
        return callable_target(*args, **kwargs)

    return wrapper</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.context_enter_auto"><code class="name flex">
<span>def <span class="ident">context_enter_auto</span></span>(<span>context)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def context_enter_auto(context):
    def wrapper1(func):
        @functools.wraps(func)
        def wrapper2(*args, **kwargs):
            with context:
                return func(*args, **kwargs)

        return wrapper2

    return wrapper1</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.print_traceback_javay"><code class="name flex">
<span>def <span class="ident">print_traceback_javay</span></span>(<span>)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def print_traceback_javay():
    stacks = inspect.stack()[1:]
    for i in stacks:
        print(f&#34;    at [{i.filename}:{i.lineno}]&#34;)
    print(&#34;\n&#34;)</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.raise_for_return_code"><code class="name flex">
<span>def <span class="ident">raise_for_return_code</span></span>(<span>code: Union[dict, int])</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def raise_for_return_code(code: Union[dict, int]):
    if isinstance(code, dict):
        code = code.get(&#34;code&#34;)
        exception_code = code_exceptions_mapping.get(code)
        if exception_code:
            raise exception_code
    elif isinstance(code, int):
        exception_code = code_exceptions_mapping.get(code)
        if exception_code:
            raise exception_code</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.requireAuthenticated"><code class="name flex">
<span>def <span class="ident">requireAuthenticated</span></span>(<span>func: Callable)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def requireAuthenticated(func: Callable):
    @functools.wraps(func)
    def wrapper(self, *args, **kwargs):
        if not self.connect_info.sessionKey:
            raise InvaildSession(&#34;you must authenticate before this.&#34;)
        return func(self, *args, **kwargs)

    wrapper.__annotations__ = func.__annotations__
    return wrapper</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.yes_or_no"><code class="name flex">
<span>def <span class="ident">yes_or_no</span></span>(<span>value: bool) ‑> str</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def yes_or_no(value: bool) -&gt; str:
    return &#34;yes&#34; if value else &#34;no&#34;</code></pre>
</details>
</dd>
</dl>
</section>
<section>
<h2 class="section-title" id="header-classes">Classes</h2>
<dl>
<dt id="graia.application.utilles.AppMiddlewareAsDispatcher"><code class="flex name class">
<span>class <span class="ident">AppMiddlewareAsDispatcher</span></span>
<span>(</span><span>app)</span>
</code></dt>
<dd>
<div class="desc"><p>所有非单函数型 Dispatcher 的基类, 用于为参数解析提供可扩展的支持.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class AppMiddlewareAsDispatcher(BaseDispatcher):
    always = True
    context: ContextManager

    def __init__(self, app) -&gt; None:
        self.app = app

    def beforeExecution(self, interface: &#34;DispatcherInterface&#34;):
        self.context = enter_context(self.app, interface.event)
        self.context.__enter__()

    def afterExecution(self, interface: &#34;DispatcherInterface&#34;, exception, tb):
        self.context.__exit__(exception.__class__ if exception else None, exception, tb)

    async def catch(self, interface: &#34;DispatcherInterface&#34;):
        from graia.application import GraiaMiraiApplication

        if interface.annotation is GraiaMiraiApplication:
            return self.app</code></pre>
</details>
<h3>Ancestors</h3>
<ul class="hlist">
<li><a title="graia.broadcast.entities.dispatcher.BaseDispatcher" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher">BaseDispatcher</a></li>
</ul>
<h3>Class variables</h3>
<dl>
<dt id="graia.application.utilles.AppMiddlewareAsDispatcher.always"><code class="name">var <span class="ident">always</span></code></dt>
<dd>
<div class="desc"></div>
</dd>
<dt id="graia.application.utilles.AppMiddlewareAsDispatcher.context"><code class="name">var <span class="ident">context</span> : AbstractContextManager</code></dt>
<dd>
<div class="desc"></div>
</dd>
</dl>
<h3>Inherited members</h3>
<ul class="hlist">
<li><code><b><a title="graia.broadcast.entities.dispatcher.BaseDispatcher" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher">BaseDispatcher</a></b></code>:
<ul class="hlist">
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.afterDispatch" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.afterDispatch">afterDispatch</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.afterExecution" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.afterExecution">afterExecution</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.afterTargetExec" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.afterTargetExec">afterTargetExec</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.beforeDispatch" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.beforeDispatch">beforeDispatch</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.beforeExecution" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.beforeExecution">beforeExecution</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.beforeTargetExec" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.beforeTargetExec">beforeTargetExec</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.catch" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.catch">catch</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.mixin" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.mixin">mixin</a></code></li>
<li><code><a title="graia.broadcast.entities.dispatcher.BaseDispatcher.onActive" href="../broadcast/entities/dispatcher.html#graia.broadcast.entities.dispatcher.BaseDispatcher.onActive">onActive</a></code></li>
</ul>
</li>
</ul>
</dd>
<dt id="graia.application.utilles.AutoUnpackTuple"><code class="flex name class">
<span>class <span class="ident">AutoUnpackTuple</span></span>
<span>(</span><span>base_iterable: Iterable, pre_items: List[Any] = None)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class AutoUnpackTuple:
    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        self.base = base_iterable

    def __iter__(self):
        for i in self.base:
            if isinstance(i, tuple):
                yield from i
                continue
            yield i</code></pre>
</details>
</dd>
<dt id="graia.application.utilles.InsertGenerator"><code class="flex name class">
<span>class <span class="ident">InsertGenerator</span></span>
<span>(</span><span>base_iterable: Iterable, pre_items: List[Any] = None)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class InsertGenerator:
    base: Iterable[Any]
    insert_items: List[Any]

    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        self.base = base_iterable
        self.insert_items = pre_items or []

    def __iter__(self):
        for i in self.base:
            if self.insert_items:
                yield self.insert_items.pop()
            yield i
        else:
            if self.insert_items:
                yield from self.insert_items[::-1]</code></pre>
</details>
<h3>Subclasses</h3>
<ul class="hlist">
<li><a title="graia.application.utilles.MultiUsageGenerator" href="#graia.application.utilles.MultiUsageGenerator">MultiUsageGenerator</a></li>
</ul>
<h3>Class variables</h3>
<dl>
<dt id="graia.application.utilles.InsertGenerator.base"><code class="name">var <span class="ident">base</span> : Iterable[Any]</code></dt>
<dd>
<div class="desc"></div>
</dd>
<dt id="graia.application.utilles.InsertGenerator.insert_items"><code class="name">var <span class="ident">insert_items</span> : List[Any]</code></dt>
<dd>
<div class="desc"></div>
</dd>
</dl>
</dd>
<dt id="graia.application.utilles.MultiUsageGenerator"><code class="flex name class">
<span>class <span class="ident">MultiUsageGenerator</span></span>
<span>(</span><span>base_iterable: Iterable, pre_items: List[Any] = None)</span>
</code></dt>
<dd>
<div class="desc"></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">class MultiUsageGenerator(InsertGenerator):
    continue_count: int

    def __init__(self, base_iterable: Iterable, pre_items: List[Any] = None) -&gt; None:
        super().__init__(base_iterable, pre_items=pre_items)
        self.continue_count = 0

    def __iter__(self):
        for i in super().__iter__():
            if self.continue_count &gt; 0:
                self.continue_count -= 1
                continue
            yield i</code></pre>
</details>
<h3>Ancestors</h3>
<ul class="hlist">
<li><a title="graia.application.utilles.InsertGenerator" href="#graia.application.utilles.InsertGenerator">InsertGenerator</a></li>
</ul>
<h3>Class variables</h3>
<dl>
<dt id="graia.application.utilles.MultiUsageGenerator.continue_count"><code class="name">var <span class="ident">continue_count</span> : int</code></dt>
<dd>
<div class="desc"></div>
</dd>
</dl>
</dd>
</dl>
</section>
</article>
<nav id="sidebar">
<h1>Index</h1>
<div class="toc">
<ul></ul>
</div>
<ul id="index">
<li><h3>Super-module</h3>
<ul>
<li><code><a title="graia.application" href="index.html">graia.application</a></code></li>
</ul>
</li>
<li><h3><a href="#header-functions">Functions</a></h3>
<ul class="">
<li><code><a title="graia.application.utilles.DeprecatedSince" href="#graia.application.utilles.DeprecatedSince">DeprecatedSince</a></code></li>
<li><code><a title="graia.application.utilles.SinceVersion" href="#graia.application.utilles.SinceVersion">SinceVersion</a></code></li>
<li><code><a title="graia.application.utilles.applicationContextManager" href="#graia.application.utilles.applicationContextManager">applicationContextManager</a></code></li>
<li><code><a title="graia.application.utilles.call_atonce" href="#graia.application.utilles.call_atonce">call_atonce</a></code></li>
<li><code><a title="graia.application.utilles.context_enter_auto" href="#graia.application.utilles.context_enter_auto">context_enter_auto</a></code></li>
<li><code><a title="graia.application.utilles.print_traceback_javay" href="#graia.application.utilles.print_traceback_javay">print_traceback_javay</a></code></li>
<li><code><a title="graia.application.utilles.raise_for_return_code" href="#graia.application.utilles.raise_for_return_code">raise_for_return_code</a></code></li>
<li><code><a title="graia.application.utilles.requireAuthenticated" href="#graia.application.utilles.requireAuthenticated">requireAuthenticated</a></code></li>
<li><code><a title="graia.application.utilles.yes_or_no" href="#graia.application.utilles.yes_or_no">yes_or_no</a></code></li>
</ul>
</li>
<li><h3><a href="#header-classes">Classes</a></h3>
<ul>
<li>
<h4><code><a title="graia.application.utilles.AppMiddlewareAsDispatcher" href="#graia.application.utilles.AppMiddlewareAsDispatcher">AppMiddlewareAsDispatcher</a></code></h4>
<ul class="">
<li><code><a title="graia.application.utilles.AppMiddlewareAsDispatcher.always" href="#graia.application.utilles.AppMiddlewareAsDispatcher.always">always</a></code></li>
<li><code><a title="graia.application.utilles.AppMiddlewareAsDispatcher.context" href="#graia.application.utilles.AppMiddlewareAsDispatcher.context">context</a></code></li>
</ul>
</li>
<li>
<h4><code><a title="graia.application.utilles.AutoUnpackTuple" href="#graia.application.utilles.AutoUnpackTuple">AutoUnpackTuple</a></code></h4>
</li>
<li>
<h4><code><a title="graia.application.utilles.InsertGenerator" href="#graia.application.utilles.InsertGenerator">InsertGenerator</a></code></h4>
<ul class="">
<li><code><a title="graia.application.utilles.InsertGenerator.base" href="#graia.application.utilles.InsertGenerator.base">base</a></code></li>
<li><code><a title="graia.application.utilles.InsertGenerator.insert_items" href="#graia.application.utilles.InsertGenerator.insert_items">insert_items</a></code></li>
</ul>
</li>
<li>
<h4><code><a title="graia.application.utilles.MultiUsageGenerator" href="#graia.application.utilles.MultiUsageGenerator">MultiUsageGenerator</a></code></h4>
<ul class="">
<li><code><a title="graia.application.utilles.MultiUsageGenerator.continue_count" href="#graia.application.utilles.MultiUsageGenerator.continue_count">continue_count</a></code></li>
</ul>
</li>
</ul>
</li>
</ul>
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